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2 years ago

Solve each equation (x+8)(x-2)=-9

Mathematics

2 answers:

Nesterboy [21]2 years ago

5 0

X=1, x=-7 would be the correct answer.

Reptile [31]2 years ago

4 0

Hi

1)(x+8)(x-2)=-9

2) x^2−2x+8x−16=−9

3) x^2+6x−16=−9

4) x^2+6x−16+9=0

5) x^2+6x−7=0 
6) (x−1)(x+7)=0

7) x=1,−7

I hope helped ^-^

I hope that you give me a brain

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Negative four times the sum of a number and 3 is at least 28, translate.

user100 [1]

Answer: $-4 * (n+3) \geq 28$

Step-by-step explanation:

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Is at least 28 -> $-4 * (n+3) \geq 28$

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2 years ago

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Vera_Pavlovna [14]

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2 years ago

In Kayllie'srecipe for lemonade, the ratio of lemons to water is 7 to 4. People are complaining that the lemonade is too weak. W

katrin [286]

Answer:

B.) 10 to 5 and D.) 8 to 4.

Step-by-step explanation:

Since we are trying to make the lemon taste stronger, there would need to be more lemons than water. The ratio would need to have a larger difference than 7:4. The difference is 3.

Choice A has a difference of 2. Two is less than 3 so this would taste more watery than lemony. Choice C has a difference of 3. Because we want a stronger lemon taste, this won't work. It would taste the same.

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2 years ago

Is this equation a linear function? If so give the intersepts 12x+3y=6

Katarina [22]

Dear Mendozaaj55, 12x + 3y = 6 is a linear function. To find the y-intercept set x = 0 and solve --> 3y = 6 --> y = 2. Therefore, the y-intercept is (0,2). To find the x-intercept, set y = 0 and solve. 12x = 6 ---> x = .5---> the x-intercept is the coordinate (.5, 0). Best.

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3 years ago